The city is full of whimsical portals to another world.

An ever-evolving wall of graffiti art off East Liberty Street.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

A park and memorial dedicated to the victims of the deadliest school massacre in American history.

One of the largest Buddhist stupas in the world keeps an eye out in every direction.

Former host to the World Elephant Polo Championships.

Nailing a coin to this holy stump is just another way to ask the gods for relief from dental pain.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Ancient serpentine sacrifice holder that has stood the test of time.

A fountain standing as a testament to a doomed alliance.

A solar-powered primary school inspires hope and experimentation in a country ripe for energy innovation.

An ancient knight and a symbol of the city's freedom.

Gargoyle head that brings good luck.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

The sad remains of a monument to martial arts legend and movie star Bruce Lee—in the middle of Balkans.

Featuring Zürich's only authentic 14th-century plague doctor's uniform!

The bears of Bern have been a city highlight for over 500 years.

The Vatican's secret porn-festooned bathroom was painted in erotic murals by one of the greatest artists of the Renaissance.

These spartan apartments are provided to clergymen visiting Vatican City.

If you want to talk to the Pope you will have to stare down this surreal vision of Jesus rising from a nuclear hell.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

The 953 windows undoubtedly make this the world's most beautiful screened porch.