It’s Belvedere Castle, Central Park’s crown jewel that somehow remains a secret to many New Yorkers despite being in plain sight for over 150 years.

Bellister Castle in Northumberland, England, is hitting the market for about $3.34 million, but there's a catch. It's a National Trust lease ending in 2145, not a traditional sale.

Its festival has included performances from Dame Judi Dench, Jude Law, and even former US president Bill Clinton ...