Question: What popular tourist destination was built in the 1960's in the city that had the Pruitt-Igoe complex?

Context paragraphs:
Hiji Falls: Hiji Falls (比地大滝 , Hiji Ōtaki ) is a National Park and popular tourist destination on the island of Okinawa, Japan.  It is located in the northern part of the island, approximately 20 kilometers north of the city of Nago.  The area the falls and the ensuing river flow is tropical most of the year.  It is a popular destination for both sightseers and hikers.  The path from the start to the finish at the falls is about 2 miles, with many steep steps throughout the path.  People visiting the area are warned not to swim near the falls, as there have supposedly been deaths in the past.

Limenaria: Limenaria (Greek: Λιμενάρια ) is a village on the island of Thasos in northern Greece.  The village numbers 2480 residents (2011 census) and is the second largest settlement on the island of Thasos.  The settlement is a popular tourist destination since the 1960s, with a 1.2 km long strand of beach (Stelakis Beach) and a number of smaller coves and pebbly beaches just to the west of the settlement next to the village of Trypiti (Τρυπητή), being the main tourist magnet for the locality.  The village is also popular for tourists around the island for a visible view of the Holy Site of Mount Athos.

Nungwi: Nungwi, or Ras Nungwi, is a large village located in the far northern end of the island of Zanzibar.  With a population of about 5,563, Nungwi is the second- or third-largest settlement on the island, possibly smaller than Makunduchi.  It is situated in the Nungwi Ward in the Kaskazini A District of the Unguja North Region.  It is about 35 miles (56 km) north of Zanzibar Town on the Nungwi Peninsula, about an hour drive from Stone Town.  To the south Nungwi shares a border with the neighboring Matemwe- and Tazari villages.  Nungwi was traditionally a fishing village and dhow-building center, but is now a popular tourist destination, and for instance recognized in CNN’s list of "100 best beaches of the world" in 2014.  West Nungwi has changed a lot since the 1990s and is now a popular tourist destination with numerous resorts, restaurants, bars, stores, etc.  East Nungwi is quieter and generally more laid-back.

Cunjin Bridge Park: Cunjin Bridge Park (also called Cunjin Park) is located in the prefecture-level city Zhanjiang, China.  As one of the largest parks in Zhanjiang, it is a popular tourist destination and is included in the old Zhanjiang Eight (Eight well-known tourist attractions).  Cunjin Bridge Park is named after the Cunjin Bridge which was built in 1925 to commemorate Zhanjiang People’s resistance against French invasion in 1898.  “Cunjin” (寸金), this word contains the meaning that an inch land of Chinese national territory is worth an inch of gold and we Chinese do not allow any foreign encroachment on our territory.  An anti-French hero statue is erected at the center square of the park.

Tourism in South Korea: Tourism in South Korea refers to the tourist industry in the Republic of Korea.  In 2012, 11.1 million foreign tourists visited South Korea, making it the 20th most visited country in the world, and the 6th most visited in Asia.  Most non-Korean tourists come from Japan, China, Taiwan and Hong Kong.  The recent popularity of Korean popular culture, often known as the "Korean Wave", in these countries has increased tourist arrivals.  Seoul is the principal tourist destination for visitors; popular tourist destinations outside of Seoul include Seorak-san national park, the historic city of Gyeongju and subtropical Jeju Island.  Traveling to North Korea is not normally possible without a special permission, but in recent years organized group tours have allowed groups of South Korean citizens to visit Mount Kumgang.

Horní Bečva: Horní Bečva is a village in Vsetín District, Zlín Region, Czech Republic.  It is a typical highland village with the altitude of 505 m nestled in the heart of Beskydy mountains.  The population of the village is 2,731 (2005).  It is a popular tourist destination with great possibilities for hiking, mountain biking and cross country skiing.  Horní Bečva is the biggest village from the three Bečva villages.  It is a popular tourist destination, with many weekend cottages.  The river Rožnovská Bečva flows through the village.

Tourism in Hungary: There is a long history of tourism in Hungary, and Hungary was the world's thirteenth most visited tourist destination country in 2002.  Tourism increased by nearly 7 percent between 2004 and 2005.  European visitors comprise more than 98 per cent of Hungary's tourists.  Austria, Germany, and Slovakia make the largest numbers of visitors to the country.  Most tourists arrive by car and stay for a short period of time.  Hungary's tourist season is from April through October.  July and August are the best tourist months.  Budapest is the country's most popular tourist destination.

History of St. Louis (1905–80): The history of St. Louis, Missouri, from 1905 to 1980 saw declines in population and economic basis, particularly after World War II.  Although St. Louis made civic improvements in the 1920s and enacted pollution controls in the 1930s, suburban growth accelerated and the city population fell dramatically from the 1950s to the 1980s.  Like many urban areas, St. Louis experienced high unemployment during the Great Depression, then expanded its industrial base during World War II.  The city became home to the Jefferson National Expansion Memorial during the 1930s, and during the 1960s the Gateway Arch was built on the memorial grounds.  St. Louis City and St. Louis County made multiple attempts at consolidation during the period, but none were particularly successful.  Despite attempts at urban renewal that included public housing projects such as the Pruitt-Igoe complex, and the city continued to lose population to county cities.

Jaipur: Jaipur ( ) is the capital and the largest city of the Indian state of Rajasthan in Western India.  It was founded on 18 November 1727 by Jai Singh II, the ruler of Amer after whom the city is named.  As of 2011, the city has a population of 3.1 million, making it the tenth most populous city in the country.  Jaipur is also known as the "Pink City of India".  Jaipur is located 280 km from the Indian capital New Delhi.  Jaipur forms a part of the west Golden Triangle tourist circuit along with Agra (240 km ).  Jaipur is a popular tourist destination in India and serves as a gateway to other tourist destinations in Rajasthan such as Jodhpur (348 km ), Jaisalmer (571 km ) Udaipur (421 km ).

Gateway Arch: The Gateway Arch is a 630 ft monument in St. Louis in the U.S. state of Missouri.  Clad in stainless steel and built in the form of an inverted, weighted catenary arch, it is the world's tallest arch, the tallest man-made monument in the Western Hemisphere, and Missouri's tallest accessible building.  Built as a monument to the westward expansion of the United States, and officially dedicated to "the American people," it is the centerpiece of the Jefferson National Expansion Memorial and has become an internationally recognized symbol of St. Louis, as well as a popular tourist destination.

Supporting paragraphs: History of St. Louis (1905–80) Gateway Arch
Answer: Gateway Arch