Some can be entered only by boat at low tide, while others, occurring along beaches, can be walked into.
Stemm's office — in January, he became Odyssey's C.E.O. and chairman of the board, after Morris, who has been battling cancer, resigned from the firm — can be entered only by punching a security code into a keypad.
Some are rather ingenious, as when you must explore a dungeon that can be entered only by taking an addictive substance that will ravage the player's health if not regularly ingested.
The cramped space, which can be viewed from outside through cutaway corners but entered only by the artist, looks like an insanely cluttered set for "The Martha Stewart Show" doubling as a basement science lab and a hermetic art studio.
Line 3: Taxpayers who earned less than $10,000 in 1996 must in the space provided give an explanation for their low productivity in the greatest economy in the history of the world, in English: My explanation: _____ (Line 3A to be entered only by taxpayers who have filled in Line 3).
Within the Holy of Holies, two cherubim of olive wood stood with the Ark; this innermost sanctuary was considered the dwelling place of the Divine Presence (Shekhina) and could be entered only by the high priest and only on the Day of Atonement (Yom Kippur).
The House Committee rule is that wives of members can use their floor at all times but that husbands are permitted to enter only when invited by their wives.
While fires that raged for much of the weekend were largely under control by Monday, Sgt. Benoît Richard of the provincial police, known as Sûreté du Québec, said much of the site remained so dangerous that officers were able to enter only when accompanied by firefighters.
Men could enter only if accompanied by a woman, while women were allowed in either way.
