If you can't get yourself up the mountain, take an online expedition to an observatory. Panoramic views of Mauna Kea are available at the Gemini North virtual tour. The Saturn V rocket. Darth Vader's Death Star. I've long had an affinity for massive construction projects, real or otherwise.
Giant telescopes invoke a similar feeling.
But they have an added attraction as the ultimate fantasy objects for amateur observers. For the most part, only professional astronomers will have the opportunity to use these gigantic eyes, and not visually. Although you can go visit them, unless a facility has a decent visitor's center, there isn't really that much to see at an observatory in person. The drive up and down the mountain may prove to be more exhilarating. After all, observatories are research facilities, not theme parks.