A restaurant and observation deck built in a unique broadcasting antenna.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

An eccentric aristocrat brought these Australian natives to their current Scottish home.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Copenhagen's celebrated theme park and gardens.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Go inside to really appreciate this 500-year-old technological masterpiece.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

The ancient latrines of the Greeks, in all their public glory.

The glowing blue Nymphaeum of Emperor Tiberius.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

One of New Zealand’s few castles boasts beautiful gardens, grand architecture, and a history filled with family drama.

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

A fascinating little museum all about the rich history of Peru’s famous plant.

A remarkably well preserved tower dating all the way back to the Iron Age.

This legendary city has been a tourist attraction for centuries.

This Oakland fairytale kingdom, fiercely devoted to childlike whimsy, was an early inspiration for Disneyland.

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

A museum honoring Germany’s cucumber mecca offers a great dill of gherkin history.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

Ancient Egyptian relief, claimed to depict an electrical light.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

The California capital city once stood 10 feet lower than it does today.